Maxim Defense PDX 300 Blackout 5.5″ Pistol with SCW Brace – 20rd Black

The Maxim Defense PDX in 300 Blackout is purpose-built for Tier 1 close-quarters operations, delivering elite PDW performance in an incredibly compact package. Measuring just 18.75″ in overall length, the PDX is engineered for confined spaces, urban environments, and vehicle-based missions where maneuverability is non-negotiable.

At the core of the PDX is Maxim’s patented SCW (Super Compact Weapon) system — a 4″ brace system with an integrated bolt carrier group and interchangeable buffer weights. This innovative design provides enhanced recoil control, faster follow-up shots, and improved reliability across calibers, making it one of the most advanced compact platforms available today.

Out front, the PDX ships standard with the Maxim HATEBRAKE muzzle booster, installed beneath the handguard to reduce felt recoil, decrease flash signature, and redirect blast forward. Whether running suppressed or unsuppressed, the HATEBRAKE optimizes performance in tight-quarters engagements where muzzle blast and control are critical.

Key Features:
• Caliber: 300 Blackout
• Barrel Length: 5.5″
• Overall Length: 18.75″
• Capacity: 20 Rounds
• Patented SCW system with integrated BCG and interchangeable buffer weights
• Maxim HATEBRAKE muzzle booster installed under handguard
• Brace-equipped PDW configuration
• Finish: Black

Whether you’re a serious professional, competitive shooter, or collector seeking one of the most advanced compact firearms on the market, the Maxim Defense PDX delivers unmatched engineering in a ready-to-deploy platform.

Order online at Deep Roots Rifle Co for fast shipping nationwide, or stop by our Eustis, Florida gun store to see our hard-to-find inventory in person. Our knowledgeable staff is ready to help you find the right firearm for your mission.